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NASA's TESS Miscalculates Exoplanet Sizes, Redefines Habitability

7/2/2025

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Summary

Story summary

NASA's TESS may have miscalculated exoplanet sizes by 6.1%, resulting in a staggering 20% overestimation of their densities, according to a new study in The Astrophysical Journal. This revelation could reshape our understanding of Earth-like exoplanets, influencing how we search for potentially habitable worlds beyond our solar system.

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Story summary

NASA's TESS may have miscalculated exoplanet sizes by 6.1%, resulting in a staggering 20% overestimation of their densities, according to a new study in The Astrophysical Journal. This revelation could reshape our understanding of Earth-like exoplanets, influencing how we search for potentially habitable worlds beyond our solar system.